Trolley.



TROLLEY. PPLIOATIQN'HLBD 00T. 13.19021.v

E() MODEL.

me Noms versus c. mowummrwsnmmou, nza.

UNITED STATES :Patented september 15, 1903.l

PATENT GFFIGE.

HARRY E. MYERS, OF KITTANNING, PENNSYLVANIA.

TROLLEY.

SPECIFICATION forming part of Letters Patent No. 738,926, dated September 15, 1903. Application lod October 13, 1902.` Serial lla-127,053. (No model.)

To all whom it may concern:

Beit known that I, HARRY E. MYERS, a citizen ofthe United States, .residing at Kittanning, in the county of Armstrong and State of Pennsylvania, have invented anew and useful Improvement in Trolleys, of which improvement the following is a specification.

My invention relates to an improvement in trolley-poles, and more especially to a means for preventing the trolley-wheel from jumping off the wire.

The object of my invention is to provide a guard for the trolley-wheel that will keep the wheel on the wire and y'et allow the pole'to be lowered when it is desired to swing the same around to the other end ofthe car.

Another object of the invention resides in providing such a device as will be strong, durable, and effective and that will be simple to operate and inexpensive to produce.

Furthermore, my invention consists in the novel details of construction and operation, a preferable embodiment of which is illustrated in the drawings and described in the specification and pointed out in the claims.

Figure 1 is a side elevation of the upper end of a trolley-pole, showing my invention applied thereto. Fig. 2 is a top plan view of Fig. 1. Fig. 3 is a perspective view of one of the spring-pressed blocks. Fig. 4 is a detail perspective View of one of the retainingsprings; and Fig.5 is a view taken from the rear end of the trolley, as illustrated in Fig. 1.

In the drawings the numeral l indicates the ordinary trolley-pole, which is provided with the usual head 3 and the regular grooved trolley-wheel 4.

A pair of spring-pressed guards 5, having lapping extensions 6, which extend at approximately right angles to guards 5, are pivoted in bearings 7, secured to sides of the trolley-head 3.. The guards 5 are made rectangular in cross-section with rounded corners and iiat sides, which iiat sides lie against the sides ofthe trolley-head 3.

A block 8, formed with a recess 9 in the bottom thereof, which recess fits over the guard, is provided on its upper surface with a groove 10, adapted to receive a flat spring 11, secured to the side'of the trolley-head 3. These blocks and springs are provided on both sides of the trolley-head.

It will be readily seen that the springpressed blocks 8 will hold the guards 5 against the trolley-head and keep the overlapping extensions 6 lapped across the periphery of the trolley-wheel 4, as clearly'shown vinfull lines in Figs. 1 and 2, and thus prevent the wheel from jumping ed the wire, for should the trolley-wheel tend to jump it would be immediately replaced by the wire impinging against the extensions 6 and being thrown Y back onto the wheel thereby.

A rope 15, split at its ends, which split portions are connected to eyes l2 on the lower ends of the guards 5, is passed through an eye 14, carried by the pole l. By pulling on the rope l5 the guards 5 will be swung around,

forcing the blocks 8 outward against the flat springs 1l and separating the overlapping extensions 6, as clearly shown in dotted lines'in Figs. l and 2, thereby allowing the trolleywheel to be disengaged from the trolley-wire and the pole to be lowered and swung around to the other end of the car. When the wheel is again placed in contact with the wire and y the rope released, the spring-pressed blocks 8, bearing on the rounded edges of the guard, will swing them back against the sides of the trolley-head 3, and thus throw the extensions 6 across the periphery of the trolley-wheel, and the parts are again in their normal positions.

I do not care to limit myself to the exact details of construction and operation, as I may make various changes inthe same within the scope of my claims and without departing from the spirit of my invention.

Having thus described my invention, what I claim as new is 1. The combination with a trolley-pole, of a head, a wheel rotatably mounted'in the head, a pair of pivoted guards mounted on the head and having extensions projecting across the periphery of the wheel, and spring-pressed blocks bearing against the sides of the guards, substantially as described.

2. The combination with a trolley-pole, of a head, a wheel rotatably mounted in the head, a pair of pivoted guards mounted on the head and having extensions projecting across the periphery of the wheel, blocks having grooves therein and bearing against the sides of the IOC guards, and iat springs secured to the head and resting in the grooves provided in the blocks, substantially as described.

3. The combination with a trolley-pole, of a head, a wheel rotatably mounted in the head,

5 a pair of pivoted guards provided with rounded edges mounted on the head and-having extensions projecting across the periphery of the Wheel, blocks formed with a groove and a recess adapted to receive the dat sides of the xo guards, and dat springs secured to the sides of the head and resting in the grooves pri vided in the blocks, substantially as de-v scribed.

In testimony whereof I have hereunto signed my name in the presence of two sub- I5 scribing Witnesses.

HARRY E. MYERS. In presence of LOUIS MOESER, M. HUNTER. 

